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    Sintered Materials with New Concept for Valve Seats—With and without Cobalt

    Sintered Materials with New Concept for Valve Seats—With and without Cobalt


    We applied the new sintered materials “Dispersed hardening alloy” to valve seats for passengercar's engines. The feature of this new type of materials is that they have many hard dispersed particles consisting intermetallic compound in their relatively soft matrixes. The evaluation were done by actual engines and we found that hard particles assured the good performance of valve seats and did not cause wear to valve faces. Moreover with this new concept the production of valve seats without cobalt can be achieved.

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    Title :

    Sintered Materials with New Concept for Valve Seats—With and without Cobalt

    Additional title:

    Sae Technical Papers

    Contributors:
    Endoh, Hiroyuki (author) / Miyamoto, Osamu (author) / Hayasaka, Tadao (author) / Nakata, Tohru (author)
    Conference:

    SAE International Congress and Exposition ; 1981

    Published in:

    Sae Technical Paper Series

    Publication date :

    1981-02-01

    ISSN :

    2688-3627 , 0148-7191

    DOI :

    https://doi.org/10.4271/810237

    Type of media :

    Conference paper

    Type of material :

    Print

    Language :

    English

    Keywords :

    Particulate matter (PM) , Hardening , Valves , Powder metallurgy , Production , Alloys , Wear , Seats and seating

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